Drilling or boring machine.



PATENTED MAY 7, 1907.

H. J. LAMB & A. K. KIRKPATRICK.

' DRILLING ORYBORI'NG MACHINE.

APPLIOATIONI'ILED JULY 16, 1906.

HENRY JOHN LAMB,

UNITED STATES PATENT OFFIQE.

OF LONDON, AND ALEXANDER K. KIRKPATRICK. OF KINGSTON, ONTARIO, CANADA.

I DRILLING OR BORING MACHINE.

Specification of Letters Patent.

Eatented May '7, 1907.

Application filed July 16, 1906. Serial No. 326,469.

dlesex, in the Province of Ontario, Canada,

and ALEXANDER K. KIRKPATRICK, of the city of Kingston, in the county of Frontenac, in the Province of Ontario, Canada, have invented certain new and useful Improvements in Drilling or Boring Machines, of which the following is the specification.

Our invention relates to improvements in drilling or boring machines more particularly adapted for submarine use in securing sam ples of material, such as clay, sand, rock etc. and the object of the invention is to'devise a simple, strong, light and durable machine by which accurate samples of material may be secured from under water strata expeditiously, economically and during any ordinary class of Weather in inland or tidal Waters and it consists essentially of a pair of vertical standards supported on a suitable base and connected bya cross bridge having a central aperture extending therethrough, a sleeve fitting into the central shaft and having internal lugs, a spiral hollow shaft fitting within the aforesaid sleeve, the spirals of which are engaged by the lugs a drill stock extending through the hollow shaft and suitably held therein, a worm wheel secured on the outside sleeve, a cross shaft j ournaled in suitable bearings on the bridge and having a worm pinion meshing with the worm .wheel on the sleeve aforesaid, the parts being otherwise constructed and arranged in detail as hereinafter more particularly explained.

Figure l, is a perspective view of my improved drilling or boring machine. Fig. 2 is, an enlarged sectional detail through the center of the bridge. Fig. 3, is a perspective detail of the clutch mechanismfor operating the shaft during rock drilling. Fig. 4, is a sectional detail of Fig. 3. Fig. 5 is a sectional view of the sleeve.

In the drawings like letters of reference indicate corresponding parts in each figure.

A is the base frame, which is designed to be placed upon a scow, raft or any other suitable su port floating in the water.

I3 are tubular standards which have bottom end caps B connected by the bolts B to the brackets 13 secured to the side beams of the frame A.

B are top caps secured to the tops of the standards B and connected to the top by the tubular bridge B having the bent ends as indicated. I

O are braces connected to the top caps of the standards B and to brackets O on the side beams. of the frame.

D is a bridge of any suitable construction and secured at each end on the standards B. V

bottom and provide a means for the exit of the earth or soil. The drill stock has, of course, suitably connected to it at the bottom a bit of a form adaptable for the particular use to which the drill is to be applied. As,

however', this bit forms no part of my invention I do not describe'it, nor the manner of its connection to the drill stock, which also is no new feature. The drill stock G is provided with a split collar Gr intermediate of its length and preferably toward the top of the same.

II is a hollow shaft having a spiral groove H formed thereon for the major portion of its length and H is a boss formed at the upper end of the hollow shaft II and H3 is a set screw provided with a hand wheel II, such set screw being designed to secure the hollow shaft in position on the drill stock.

I is a sleeve having internal bosses I thereon, which fit into the spiral groove of the hollow shaft II and are designed to serve to feed the stock down as will hereinafter appear and exert a down pressure upon the same to enter the earth. The upper end of the sleeve I is provided with an annular groove I into which extends as hereinafter described the inner end of the lever J pivoted on the bracket J attached to the bridge D and normally in engagement with the catch J The bracket J and catch J are both supported in the bridge D.

I represents an idle wormwheel loosely surrounding the sleeve I.

I is a feather key secured to or forming part of the sleeve I. i

I is a key way formed into the worm wheel I When it is designed to use the drill for material such as clay or sand, the sleeve I is lowered by means of the lever J, until the key I enters the key way I of the worm wheel I so that the worm wheel I and the sleeve I are connected together.

The sleeve I is held in the crosshead by the lever J and the key I i By turning the crank handle E the worm wheel F is rotated and also the worm wheel I engaging therewith and by means of the key I the sleeve I is also rotated which is connected to the sleeve II by the spiral groove H and. the bosses I. It will, of course, be understood. that the tool at the end of the drill stock is first broughtinto contact with the material to be tested, by loosening the set screw H and allowing the drill stock to slide through the sleeve II until its end contacts with the soil at the bottom of tube G when the screw H is again tightened and then the handle E is rotated thus rotating the sleeves I and H and the stock G.

Upon the tool coming into contact with the material the rotation of the stock is thereby resisted to a certain extent, causing the sleeve I to gradually rotate around the sleeve H, thereby feeding the sleeve II vertically downwardly and the tool connected thereto into the material.

The tube G will descend of its own gravity as the hole is being made.

The clay or other material exudes through the top of the tube G and thereby the nature of the bottom in which the hole is being inade may be readily determined.

In order to raise the tube G after the hole has been made and the sample of the bottom secured I provide the minor and major sprocket wheels K and K on the shaft E and the sprocket chains K passing around the block K, which is provided with a hook K as indicated. The upper free ends of the sprocket chain passes around the sprocket wheels K and K and as the sprocket wheel K is the larger sprocket wheel the chain on that side passing over such sprocket Wheel will rise more quickly and thereby run around. the block K The tube G is connected by a chain as indicated by dotted lines to the hook K such chain being twisted in the usual manner around the tube.

It will thus be understood. that the tube may be readily raised by operating the crank handle as hereinbefore stated.

When it is desired to use arock drill with the drill stock G should a rock bottom be reached and the nature thereof necessary to determine, I provide the following simple attachment to my drill: L is a cam secured on the shaft E. L is a lever pivoted on a bracket L connected to the brldge and having a depending portion L L is arod connected to the free end of. the lever at the top and at the bottom to an arm M attached to or forming part of the sleeve N. O is a cross bar through which the drill stock extends, such crossbar being supported by the depending arms 0 secured to the bridge D. The cross bar 0 has depending lugs O asindicated. N are friction dogs pivoted on brackets I attached to or forming part of and having an inclined face reversely set to the inclined face of the lug O with which it is designed to co-act.

The parts hereinbefore described are particularly adaptable for rock drilling and to cause the bit to act as a churn drill.

Before rotating the handles E the lever J is manipulated to raise the'sleeve I so as to raise the key I vertically upwardly out of the key way I thereby disengaging the worm wheel from the sleeve. Also the screw H will be turned to disengage the boss G thus allowingthe stock G to move vertically upwardly and downwardly within the sleeve H.

By manipulating the handles E the cam L is turned and operates upon the lever L and by means of the rod L raises the sleeve N until the tails ofthe dogs N contact with the lugs 0 The dogs frictionally hold the drill stock and consequently raise the same and as soon as the contact is made the drill stock is released and the drill drops. Upon the cam raising the sleeve N again the lug bl comes in contact with the lug O and swings around the sleeve N and consequently the drillstock preparatory to the delivery of any blow. The dogs N now releasing the drill stock the drill drops again of its gravity to the work and so on.

Such a drill as I have described may be readily applied to boring above and below through earth, clay, sand, 'quiclesand, small gravel and mud and bringing samples to the surface from various depths. It .also may, by use of the attachment hereinbefore described, be utilized for rock drilling on the churn principle as there is no screw feed and there is a long pitched spiral thread on the sleeve and there is no liability of the parts of the drill being broken as is the case where the feed is -a straight feed as in other machines of which I am aware.

What we claim as our invention is:

1. In a drilling machine, the combination with standards suitably supported and a cross bridge extending between the same, of a sleeve extending through the cross bridge and provided with inwardly extending bosses, a hollow shaft fitting within the sleeve and provided with a spiral groove into which the bosses extend, a drill stock ex tending through the hollow shaft and pro vided with a suitable bit and suitably held in the hollow shaft and means for driving the sleeve as and for the purpose specified.

2. In a drilling machine, the combination with standards suitably supported and a cross bridge extending between the same, of a sleeve extending through the cross bridge and provided with inwardly extending bosses, a hollow shaft fitting within the sleeve and provided with a spiral groove into which the bosses extend, a drill stock extending through the hollow shaft and means for removably securing the stock in the hollow shaft, and means for driving the sleeve.

3. In a drilling machine, the combination with standards suitably supported and a ,cross bridge extending between the same said bridge having a slot therein, of a sleeve extending through the cross bridge and provided with inwardly extending bosses, a hollow shaft fitting within the sleeve and provided with a spiral groove into which the bosses extend, a drill stock extending through the hollow shaft and suitably held therein, a worm wheel secured on the sleeve and located in the slot in the bridge, a cross shaft supported in bearings in the bridge and provided with suitable crank handle and a worm secured on the cross shaft meshing with the worm wheel as and for the purpose specified.

4. The combination with standards and a bridge and a drill stock and a hollow shaft through which the stock extends, of a cross bar, depending hangers connecting the cross bar to the bridge, said bar having depending lugs, a sleeve located on the drill stock and provided at the upper end with friction dogs designed to engage with the stock, said dogs having tails and means for raising the sleeve for bringing the tails of the dogs into engagement with the depending lugs of the cross bar as and for the purpose specified.

5. The combination with standards and a bridge and a drill stock and a hollow shaft through which the stock extends, of a cross bar, depending hangers connecting the cross bar to the bridge, said bar having depending lugs, a sleeve located on the drill stock and provided at the upper end-with friction dogs designed to engage with the stock said dogs having tails, a crank shaft ournaled in bearings on the bridge a cam secured on the crank shaft, a lever fulcrumed on the bridge and provided with a depending intermediate por tion designed to ride on the cam, and a rod connecting the outer end of the lever with the sleeve on the drill stock so as to raise the sleeve whereby the tails on the dogs will engage with the depending lugs of the cross bar and said dogs will be turned to release the stock.

6. The combination with standards and a bridge and a sleeve extending through the bridge and provided with inwardly extending bosses and an upper external annular groove, of a hollow shaft provided with an external spiral groove, with which the bosses engage, a drill stock extending through the hollow shaft, means for securing the stock to. the shaft, a bracket on the bridge, a lever pivoted on said bracket and designed to engage with the annular grooves at the upper end of the sleeve to shift said sleeve longitudinally, a worm wheel. loose on said sleeve, means for rotating said worm wheel and a key for connecting the said wheel to the sleeve in one position of the sleeve.

HENRY JOHN LAMB. Witnesses:

GEORGE T. BROWN, 0. B. WooDsBURY.

ALEX. K. KIRKPATRICK. Witnesses: G. W. MAXWELL,

EDITH ORSER. 

